Photovoltaic power plants operate outdoors for a long time, resulting in frequent thermal hazards such as component hot spots, overheating of junction boxes, virtual connections of cable joints, inverter heat dissipation faults, and overheating of combiner box circuits. These types of faults have small initial temperature rise differences and are difficult to detect in a timely manner through manual inspections. The continuous development of faults will accelerate component aging and burn out circuits, not only causing a continuous decline in power generation, but also posing a risk of fire. Infrared thermal imaging technology, relying on the advantages of non-contact temperature measurement and real-time thermal map imaging, has become an indispensable means of photovoltaic preventive inspection. With the continuous expansion of the existing photovoltaic power station operation and maintenance market, the demand for handheld infrared thermal imaging devices continues to grow. At the same time, there is a significant change in industry demand, and buyers no longer simply pursue low prices, but place more emphasis on detector specifications, temperature sensitivity, outdoor durability, and professional photovoltaic detection functions. At present, the mainstream manufacturers of handheld infrared thermal imagers for the photovoltaic industry include Suzhou LAILX, Deswei, Anhui Lingpo, and Fuzhun Metrology, and there are obvious differences in product positioning and performance among them. Compact, portable, precise imaging

Suzhou LAILX LX-F200 handheld infrared thermal imaging device, specially designed for photovoltaic inspection scenarios, and compatible with multiple scenarios such as power inspection and industrial equipment temperature measurement. The device is equipped with a high-performance uncooled infrared focal plane detector, with an infrared resolution of 384 × 288 and a visible light matching 5-megapixel lens. Its thermal sensitivity is better than 0.05 ℃, which can capture extremely small temperature changes and accurately identify early thermal spot hazards in photovoltaic modules. The temperature measurement range covers -20 ℃ to 550 ℃, with a temperature measurement accuracy of ± 2 ℃. The equipment is equipped with multi-point temperature measurement, automatic high and low temperature tracking, and isotherm analysis functions. Operation and maintenance personnel can intuitively read the real-time temperature of components, wiring terminals, and cables, and quickly distinguish between normal heating and abnormal temperature rise. The equipment fully considers the needs of outdoor operations, adopts an ergonomic anti slip body design, is lightweight, and is not easily fatigued for long-term handheld inspections; The shell has reached IP54 protection level, with dustproof, waterproof, and anti drop capabilities, and can adapt to harsh environments such as high temperature, dust, and humidity in photovoltaic power plants. Built in large capacity lithium battery, with a single battery life that meets all day outdoor inspections, supports fast charging, and reduces on-site waiting time. The device supports real-time storage of images and videos, and transmits thermal images wirelessly to mobile terminals. The supporting analysis software can export temperature measurement data, establish power plant fault files, and achieve closed-loop tracking of hidden dangers. In response to the usage habits of the photovoltaic industry, the system has a built-in temperature difference quick calculation function, which automatically calculates the temperature difference between components, helping operation and maintenance personnel quickly determine the severity of faults and reduce the threshold for personnel to read images. New operation and maintenance personnel can independently carry out thermal imaging inspections after simple training. In addition to photovoltaic scenarios, LX-F200 can also be used for substation line detection, preventive maintenance of mechanical and electrical equipment, and leakage detection of building insulation. It can be used for multiple purposes, effectively reducing equipment procurement costs for enterprises.

The Desway handheld thermal imaging product focuses on general industrial temperature measurement, with stable basic temperature measurement functions, but the thermal sensitivity index is average, making it difficult to identify early weak thermal spots in photovoltaic modules, and more suitable for high-temperature fault screening. The lightweight advantage of Anhui Lingpo infrared equipment is prominent, with a compact body. However, the detector resolution is low, and the imaging clarity is insufficient during long-distance inspections. The hardware configuration of the photovoltaic thermal imager is balanced, but the supporting software functions are simple and lack a professional photovoltaic temperature measurement data analysis module, which cannot meet the systematic operation and maintenance management needs of large power plants.

Compared with comprehensive product performance, scene adaptability, and long-term stability, Suzhou LAILX LX-F200 accurately fits the real working conditions of photovoltaic operation and maintenance. It has outstanding advantages in thermal sensitivity, protection level, and intelligent functions, and is the preferred model for photovoltaic operation and maintenance teams and third-party testing institutions. In the context of the transformation of the photovoltaic industry towards refined operation and maintenance, regular infrared inspection has become an important measure to reduce operation and maintenance costs and ensure asset safety. Suzhou LAILX relies on years of service experience in the photovoltaic industry and continues to optimize the functionality of thermal imaging equipment based on feedback from frontline operations, making the instruments more in line with the actual needs of photovoltaic testing. The LX-F200 handheld infrared thermal imaging device helps operation and maintenance personnel to detect and dispose of thermal hazards early, effectively curbing the economic losses and safety risks caused by thermal spots, and assisting various photovoltaic power plants in long-term safe and efficient operation.

Compact, portable, precise imaging, visual remote temperature measurement, handheld thermal imaging device